Vintage TRC TEXAS REFINERY CORP Salesman Samples Grease & Oil Rare 1940s

Vintage TRC TEXAS REFINERY CORP Salesman Samples Grease & Oil Rare Collectible This is a leather covered wooden case that contains 9 jars of TRC grease and 9 glass vials of TRC oils. All are labeled.
Grease: Tire Seal, Vari-purpose, Crown Chassis, Rig Wa??, Wonderplate, ????Temp, Hi-Temp, Super Big Red (empty), one other I can't read.
Oil: 800???, 650 Neutral, 180 Neutral and the other labels have faded and are illegible. An oil man can probably look at these and recognize what they are.
The 9 vials of oil are all at least 90% full. The grease is between 60% and 90% full except for the empty one which is labeled Big Red. Included is a small porcelain dish and aluminum pan, possibly for heating and demo.
The case is old and dusty and needs a little glue but is sturdy with a good handle.
Don't know the age but believe this is from the 1940s. Please let me know if you have a better idea about the age.

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